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Energy compliance is made part of the plans and requires certification by the ?

•     Contractor
  

•     Engineer
  

•    Building’s Owner
  

•    Code Official
  

An open winding is indicated by a resistance reading on the ohmmeter of ___________.

• Low
• High
• Infinity
• Normal

The maximum temperature inside fibrous glass duct with continuous operation is __________.

• 250 degrees F
• 200 degrees F
• 225 degrees F
• 275 degrees F

When troubleshooting a refrigeration problem involving a sweating or frosted suction line, one probable cause is __________.

• Restricted drier or strainer
• Expansion valve stuck open
• Expansion valve open too wide
• Overcharge of refrigerant

What is the reason for the use of balancing damper __________.

• To ensure the proper amount of air is delivered to each area in the conditioned space.
• To ensure the proper air flow meter deliver to each area in the condition space.
• To insure the proper coldness in each room
• To ensure the proper condition of the air unit.

Which of the following shall be equipped with expansion tanks?

• Dual phase solar energy systems
• Liquid single phase solar energy systems
• Carbon based energy systems
• Fossil fuel energy systems

Which of the following is the property of matter that responds to gravitational attraction?

• Gravity
• Volume
• Density
• Mass Copyright Rob Estell

The defrost termination point is the .

• Temperature at which the defrost period ends
• Point at which the defrost period ends
• Point when all the frost has melted
• Point when the system returns to normal operation

What is the level of efficiency does the scroller compressor have compared to the reciprocating compressor?

• 20% more efficient
• 15% more efficient
• 10% more efficient
• 30% more efficient

Forms and shores in concrete shall not be removed until:

• directed by the architect or engineer
• the removal time stated in the specifications has elapsed
• the concrete has attained the specified compressive strength
• the concrete has gained sufficient strength to support its weight and superimposed loads

A grounded compressor motor winding is indicated by _______.

• A mild shock on contact
• An infinity reading
• A large shock
• A low resistance reading on the ohmmeter

What is the purpose of the thermocouple thermometer in heating, air conditioning and refrigeration system?

• Used to take accurate temperature
• Used to check gage level
• Used to control atmospheric pressure
• All the above

Furnace plenums shall be located a minimum of from the heat exchanger measured along the centerline of airflow. A 24 inches B 36 inches C 40 inches D 48 inches

 

What are the two-systems that water to water can be configured as?

• Left loop, right loop
• Fluid circulator, load circulator
• Well casing, well pump
• Open loop, Closed loop Copyright Rob Estell

To check for shorted motor windings, first __________.

• Perform a visual inspection of the wire insulation
• Use the ohmmeter to check the continuity from one terminal to another
• Remove all external wiring from the motor terminals
• Consult the motor manufacturer's data to determine the correct resistance requirements

When a building has a 460-volt power supply, it will have a step-down transformer to provide how many volt circuits to power office machines and small appliances?

• 230 V
• 460 V
• 277 V
• 115 V

The dew point of air depends on its ___________.

• Temperature
• Relative humidity
• Wet bulb temperature
• Both A & B

The tank diameter is 7 feet. The tank is 12 feet tall. How many gallons of water are required to fill the tank?

• Less than 3,000
• Between 3,000 and 3,500
• Between 3,500 and 4,000
• More than 4,000

Just as dry kitchen sponge absorbs liquid from a spill, the evaporator is con seater as a:

• Heat temperature
• Heat sponge
• Heat releaser
• None of the above

When staple flaps are not present to hold seams and joints in position prior to application of the closure system what should be used ____________.

• Hot seal tape
• Pressure seal tape
• Overlapping tabs
• Cross-tabs

The oil level in a sight glass on a compressor should be at or slightly ____________.

• Above the center of the sight glass
• Above the top of the sight glass
• Below the center of the sight glass
• Below the top of the sight glass Copyright Rob Estell

What is the cable tie tool used for .

• It is used to measure low pressure
• It is used to measure the velocity
• It is used to install nylon strap clamp around flexible duct
• It is used to add heat pressure in tank

Factory-made vents listed by a nationally recognized testing agency for venting listed or approved appliances equipped to burn oil are ____________.

• Type BW Vents
• Type L Vents
• Single-Metal Wall Vents
• Type B Vents